154630442 has 8 divisors (see below), whose sum is σ = 233148036. Its totient is φ = 76914432.

The previous prime is 154630433. The next prime is 154630447. The reversal of 154630442 is 244036451.

It can be written as a sum of positive squares in 2 ways, for example, as 117310561 + 37319881 = 10831^2 + 6109^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (154630447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199913 + ... + 200684.

Almost surely, 2^154630442 is an apocalyptic number.

154630442 is a deficient number, since it is larger than the sum of its proper divisors (78517594).

154630442 is a wasteful number, since it uses less digits than its factorization.

154630442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400792.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 154630442 is about 12435.0489343629. The cubic root of 154630442 is about 536.7412819281.

Adding to 154630442 its reverse (244036451), we get a palindrome (398666893).

The spelling of 154630442 in words is "one hundred fifty-four million, six hundred thirty thousand, four hundred forty-two".